High-Voltage Switchgear and Controlgear Part 200 a.c. Metal-Enclosed Switchgear and Controlgear for Rated Voltages Above 1 kV Up to and Including 52 kV ( First Revision )
Surge arresters: Part 8 metal oxide surge arresters with external series gap (EGLA) for overhead transmission and distribution lines of a.c. systems above 1 kv